December 2002
Volume 2, Issue 10
OSA Fall Vision Meeting Abstract  |   December 2002
Effects of negative afterimages in visual illusions
Author Affiliations
  • Yury Petrov
    Oxford University, Oxford, UK
  • Ariella V. Popple
    Optometry, University of California, Berkeley, USA
Journal of Vision December 2002, Vol.2, 135. doi:
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      Yury Petrov, Ariella V. Popple; Effects of negative afterimages in visual illusions. Journal of Vision 2002;2(10):135.

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      © ARVO (1962-2015); The Authors (2016-present)

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We show that a broad class of visual illusions including illusory motion can be explained by the effects of negative afterimages. Two new illusions, illusory shading and illusory tilting, are devised based on the proposed explanation. The general feature of these illusions is an alternation between a high-contrast (white or black) and low-contrast (gray) local input signal, which can be caused either by eye motion over patterns of varied luminance or by such patterns changing over time. A simple model of the local signal dynamics qualitatively reproduces the illusory effects by adding the negative afterimage to the original visual stimulus.

Petrov, Y., Popple, A. V.(2002). Effects of negative afterimages in visual illusions [Abstract]. Journal of Vision, 2( 10): 135, 135a,, doi:10.1167/2.10.135. [CrossRef]

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